摘要
随着城市化进程加速,传统分体式供冷模式面临能效低下、电网峰谷差加剧、可再生能源消纳不足等结构性矛盾,已成为城市发展过程中亟待解决的问题。以某低碳城区综合能源系统为例,致力于构建适应城区空间特征的低碳供能体系,遵循“源-网-荷”协同优化原则,对供能侧采用市域电网与分布式光伏复合供能模式,重点研究空间光伏资源的开发潜力,并进行投资测算;对输配侧配置冰蓄冷供冷站及MW级储能电站,形成光伏余电日间制冷与谷电制冰夜间调峰的双向协同机制,通过储能系统平抑负荷时序波动,并进行了经济性测算。研究结果显示,该系统的可再生能源渗透率达到31.5%,区域电网峰谷差率得到压缩,实现单位面积供冷成本及碳排放强度双双降低,为同类型气候区城市提供具有技术经济可行性的低碳供冷解决方案。
With the acceleration of urbanisation,the traditional split cooling mode is facing structural contradictions such as low energy efficiency,increasing peak-valley difference in the power grid,and insufficient consumption of renewable energy,which has become a problem to be solved in the process of urban development.Take the example of an integrated energy system in a low-carbon urban area,commit to building a low-carbon energy supply system adapted to the spatial characteristics of the urban area,following the principle of‘source-network-load’synergistic optimisation,the energy supply side adopts the composite mode of municipal grid and distributed PV,focusing on researching the potential for development of spatial photovoltaic resources and carrying out investment calculations;the transmission and distribution side is equipped with an ice storage and cold supply station and a MW-class energy storage power station,forming a PV residual power daytime refrigeration with a MW-class energy storage station.The two-way synergistic mechanism of daytime cooling of PV residual power and nighttime peak adjustment of valley power ice production is formed,and the load timing fluctuation is suppressed by the energy storage system,and the economic calculation is carried out.The results show that the renewable energy penetration rate of this system reaches 31.5%,the peak-to-valley difference rate of the regional power grid is compressed,and the cost of cooling per unit area and the intensity of carbon emission are both reduced,which provides a technically and economically feasible low-carbon cooling solution for the cities in the same type of climate zone.
作者
于宏波
焦峰华
陈曙凌
张友华
封涛
肖玉麒
贾正淼
冯俊
YU Hongbo;JIAO Fenghua;CHEN Shuling;ZHANG Youhua;FENG Tao;XIAO Yuqi;JIA Zhengmiao;FENG Jun(China Construction Eighth Engineering Division Co.,Ltd.,Shanghai 200122,China)
出处
《绿色建筑》
2025年第4期114-118,160,共6页
Green Building
基金
中建股份科技研发课题“基于钠离子电池的光储一体化建筑部品研究与应用”(CSCEC-2023-Z-2)。
关键词
低碳城区
综合能源系统
光伏利用
冰蓄冷系统
low-carbon urban district
integrated energy system
photovoltaic utilization
ice storage system
